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Deep oxidation of pollutants using gold deposited on a high surface area cobalt oxide prepared by a nanocasting route

Solsona, B., Aylon, E., Murillo, R., Mastral, A. M., Monzonis, A., Agouram, S., Davies, T. E., Taylor, S. H. ORCID: and Garcia, T. 2011. Deep oxidation of pollutants using gold deposited on a high surface area cobalt oxide prepared by a nanocasting route. Journal of Hazardous Materials 187 (1-3) , pp. 544-552. 10.1016/j.jhazmat.2011.01.073

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Gold deposited on a cobalt oxide with high surface area (138m2g-1), obtained through a nanocasting route using a siliceous KIT-6 mesoporous material as a hard template, has demonstrated high activity for the total oxidation of propane and toluene, and ambient temperature CO oxidation. The addition of gold promotes the activity when compared to a gold-free Co3O4 catalyst prepared using the same nanocasting technique. The enhanced catalytic activity when gold is present has been explained for the deep oxidation of propane and toluene in terms of the improved reducibility of cobalt oxide when gold is added, rather than to the intrinsic activity of metallic gold particles. The improved behaviour for CO oxidation has been linked to the simultaneous presence of Auδ+ and Au°. © 2011 Elsevier B.V.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Ambient temperatures; CO; CO oxidation; CoO; Cobalt oxides; Deep oxidation; Enhanced catalytic activity; Hard templates; High activity; High surface area; Intrinsic activities; Metallic gold; Nanocasting; Total oxidation, Catalyst activity; Catalytic oxidation; Cobalt; Gold; Mesoporous materials; Metallic compounds; Propane; Toluene, Gold coatings, carbon monoxide; cobalt oxide; gold; metal oxide; propane; silicon dioxide; toluene; unclassified drug, catalyst; cobalt; experimental study; gold; oxidation; propane; surface area; temperature effect, article; catalysis; environmental temperature; oxidation; pollutant; room temperature; X ray powder diffraction, Catalysis; Cobalt; Environmental Pollutants; Gold; Nanotechnology; Oxidation-Reduction; Oxides; Surface Properties
Additional Information: cited By (since 1996) 0
Publisher: Elsevier BV
ISSN: 03043894
Last Modified: 17 Aug 2023 01:05

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